Preston Park, Montana - MT117 Additional information M.F. Bekker B.P Tikalsky D.B. Fagre S.D. Bills Purpose of Collection: Ecology – age structure Detrend method: 1st: Negative exponential or linear regression of any slope 2nd: Smoothing spline, percent N cutoff; N = 35% Cores are stored at: Dale J Stevens Physical Geography Laboratory Department of Geography Brigham Young University “Ribbon forest” site; cores were collected to identify invasion of meadows adjacent to ribbons. COFECHA output: Chronology file name : MT117.CRN Measurement file name : MT117.RWL Date checked : 08JAN08 Checked by : B. Bauer Beginning year : 1766 Ending year : 2006 Principal investigators: M.F. Bekker B.P Tikalsky D.B. Fagre S.D. Bills Site name : Preston Park Site location : Montana Species information : ABLA SUBALPINE FIR Latitude : 4843 Longitude : -11339 Elevation : 2150M Series intercorrelation: 0.556 Avg mean sensitivity : 0.259 Avg standard deviation : 0.317 Avg autocorrelation : 0.713 Number dated series : 80 Segment length tested : 50 Number problem segments: 5 Pct problem segments : 1.54 PART 5: CORRELATION OF SERIES BY SEGMENTS: Preston Park 17:09 Tue 08 Jan 2008 Page 5 ----------------------------------------------------------------------------------------------------------------------------------- Correlations of 50-year dated segments, lagged 25 years Flags: A = correlation under .3281 but highest as dated; B = correlation higher at other than dated position Seq Series Time_span 1775 1800 1825 1850 1875 1900 1925 1950 1975 1824 1849 1874 1899 1924 1949 1974 1999 2024 --- -------- --------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- 1 T1#1 1837 2006 .50 .55 .72 .51 .50 .54 .55 2 T1#2 1766 2006 .48 .56 .36 .66 .68 .54 .54 .59 .69 3 T1#3 1900 2006 .67 .78 .81 .82 4 T1#7 1841 2006 .34 .38 .49 .53 .59 .72 .74 5 T1#10 1866 2006 .64 .65 .47 .54 .80 .73 6 T1#12 1942 2006 .50 .54 .55 7 T1#20 1925 2006 .51 .74 .75 8 T1#21 1944 2006 .43 .42 .33 9 T1#53 1958 2006 .53 10 T1#56A 1863 2006 .46 .52 .30A .50 .66 .68 11 T1#63A 1930 2006 .33 .46 .53 12 T1#67 1860 1982 .47 .60 .38 .56 .59 13 T1#70B 1852 2006 .53 .62 .55 .55 .58 .63 14 T1#71 1859 2006 .65 .56 .40 .65 .73 .77 15 T1#72 1890 2006 .42 .43 .49 .47 .49 16 T2#1 B 1876 2006 .62 .43 .36 .54 .64 17 T2#1bB 1905 2006 .39 .34 .54 .62 18 T2#2 1880 2006 .32A .41 .65 .62 .56 19 T2#3B 1897 2006 .70 .70 .58 .57 .63 20 T2#4 1909 2006 .40 .45 .60 .64 21 T2#6 1914 2006 .57 .50 .69 .66 22 T2#7 1956 2006 .47 .49 23 T2#14 1965 2006 .56 24 T2#40 1962 2006 .57 25 T2#71 1948 2006 .63 .64 .67 26 T2#72 1949 2006 .59 .61 .73 27 T2#84B 1800 2006 .59 .48 .69 .79 .74 .57 .61 .60 28 T3#15 1962 2006 .34 29 T3#21 1951 2006 .40 .53 30 T3#25 1954 2006 .74 .75 31 T3#28 1960 2006 .38 32 T3#32 1959 2006 .38 33 T3#37 1963 2006 .57 34 T3#54 1963 2006 .48 35 T3#99 1940 2006 .35 .37 .48 36 T3#100 1941 2006 .39 .40 .49 37 T3#101 1904 2006 .48 .69 .72 .76 38 T3#101S 1899 2006 .62 .61 .78 .82 .82 39 T3#102 1860 2006 .50 .48 .45 .38 .48 .52 40 T3#103S 1870 2006 .36 .48 .40 .46 .55 .60 41 T4#1 1775 2006 .44 .60 .52 .68 .79 .64 .72 .65 .66 42 T4#5 1795 2006 .71 .73 .72 .68 .75 .73 .72 .66 .68 43 T4#8 1904 2006 .35 .52 .65 .65 44 T4#16 1928 2006 .37 .43 .48 45 T4#21 1960 2006 .54 46 T4#42 1946 2006 .33 .37 .41 47 T4#46 1948 2006 .52 .60 .63 48 T4#50 1965 2006 .57 49 T4#67 1956 2006 .40 .41 50 T4#79 1950 2006 .44 .49 51 T4#136 1921 2006 .46 .57 .43 .39 52 T4#138 1966 2006 .59 53 T4#141 1920 2006 .41 .48 .69 .68 54 T5#1 1920 2006 .40 .41 .57 .58 55 T5#2 1923 2006 .44 .47 .64 .71 56 T5#4 1927 2006 .40 .50 .50 57 T5#8 1966 2006 .57 58 T5#41 1943 2006 .28B .38 .48 59 T5#46 1900 2006 .52 .53 .68 .72 60 T5#47B 1796 2006 .51 .55 .47 .60 .74 .60 .68 .71 .69 61 T6#1A 1889 2006 .78 .67 .69 .56 .60 62 T6#4 1882 2006 .65 .56 .64 .64 .63 63 T6#5 1920 2006 .52 .60 .66 .70 64 T6#7 1930 2006 .67 .75 .71 65 T6#8 1913 2006 .34 .50 .74 .79 66 T6#34 1930 2006 .38 .67 .69 67 T6#35B 1879 2006 .64 .57 .60 .76 .79 68 T6#38B 1886 2006 .44 .54 .49 .75 .72 69 T6#39 1880 2006 .67 .69 .62 .66 .60 70 T6#40 1879 2006 .55 .30A .36 .75 .71 71 T6#43 1950 2006 .58 .58 72 T6#53A 1855 2006 .62 .72 .55 .65 .64 .69 73 T7#4 1857 2006 .48 .66 .64 .62 .73 .77 74 T7#5 1930 2006 .49 .67 .64 75 T7#7 1890 2006 .35 .55 .56 .56 .56 76 T7#10 1871 2006 .32B .36 .54 .55 .68 .72 77 T7#12 1880 2006 .38 .47 .58 .56 .60 78 T7#13 1931 2006 .52 .58 .62 79 T7#55A 1840 2006 .39 .41 .61 .56 .35 .43 .52 80 T7#56B 1815 2006 .48 .47 .56 .68 .58 .50 .52 .57 Av segment correlation .54 .59 .47 .54 .60 .51 .53 .59 .62 PART 7: DESCRIPTIVE STATISTICS: Preston Park 17:09 Tue 08 Jan 2008 Page 9 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 1 T1#1 1837 2006 170 7 0 .546 .94 1.89 .358 .778 .210 2.66 .390 -.028 1 2 T1#2 1766 2006 241 9 0 .533 .34 1.05 .155 .722 .256 2.72 .364 -.009 1 3 T1#3 1900 2006 107 4 0 .753 .85 1.71 .316 .743 .222 2.75 .482 .025 1 4 T1#7 1841 2006 166 7 0 .546 .24 .95 .193 .757 .364 3.11 .475 -.021 1 5 T1#10 1866 2006 141 6 0 .625 .58 1.09 .193 .719 .200 2.53 .332 .000 1 6 T1#12 1942 2006 65 3 0 .553 .45 1.00 .203 .842 .210 2.56 .449 -.040 1 7 T1#20 1925 2006 82 3 0 .586 .88 2.23 .435 .818 .261 2.71 .443 -.045 1 8 T1#21 1944 2006 63 3 0 .379 .62 1.31 .216 .547 .243 2.44 .332 -.099 1 9 T1#53 1958 2006 49 1 0 .528 .68 1.12 .202 .440 .262 2.65 .532 .121 1 10 T1#56A 1863 2006 144 6 1 .503 .98 1.78 .261 .604 .196 2.62 .358 .010 2 11 T1#63A 1930 2006 77 3 0 .382 .39 .98 .176 .667 .303 2.73 .494 -.094 1 12 T1#67 1860 1982 123 5 0 .523 .28 .79 .125 .755 .237 2.69 .526 -.061 1 13 T1#70B 1852 2006 155 6 0 .575 .50 1.07 .200 .619 .271 2.62 .426 -.003 1 14 T1#71 1859 2006 148 6 0 .632 .30 .60 .134 .775 .272 2.63 .569 -.052 2 15 T1#72 1890 2006 117 5 0 .389 .12 .25 .044 .383 .370 2.69 .445 .000 1 16 T2#1 B 1876 2006 131 5 0 .555 .46 .98 .173 .654 .267 2.62 .438 -.022 1 17 T2#1bB 1905 2006 102 4 0 .520 .74 1.37 .213 .629 .198 2.64 .357 -.045 1 18 T2#2 1880 2006 127 5 1 .445 .25 .48 .103 .719 .264 2.48 .406 -.010 1 19 T2#3B 1897 2006 110 5 0 .650 1.18 2.31 .443 .711 .251 2.73 .428 .065 1 20 T2#4 1909 2006 98 4 0 .548 .60 1.18 .233 .715 .254 2.70 .489 .047 1 21 T2#6 1914 2006 93 4 0 .627 .48 1.07 .220 .721 .253 2.48 .387 .008 1 22 T2#7 1956 2006 51 2 0 .479 .95 1.63 .307 .720 .205 2.57 .530 -.012 1 23 T2#14 1965 2006 42 1 0 .563 .58 1.01 .224 .688 .231 2.62 .498 -.051 1 24 T2#40 1962 2006 45 1 0 .571 .39 .69 .138 .138 .346 2.69 .634 .083 1 25 T2#71 1948 2006 59 3 0 .667 1.31 2.45 .439 .730 .206 2.57 .440 -.037 1 26 T2#72 1949 2006 58 3 0 .617 .89 1.46 .289 .649 .243 2.64 .580 -.058 1 27 T2#84B 1800 2006 207 8 0 .624 .95 2.09 .408 .776 .237 2.54 .340 .025 1 28 T3#15 1962 2006 45 1 0 .341 .46 1.05 .213 .782 .227 2.61 .496 -.119 1 29 T3#21 1951 2006 56 2 0 .494 .96 1.62 .270 .541 .218 2.78 .642 -.073 1 30 T3#25 1954 2006 53 2 0 .747 1.50 2.44 .341 .468 .180 2.71 .473 -.022 1 31 T3#28 1960 2006 47 1 0 .382 .55 1.32 .351 .859 .259 2.61 .497 .062 1 32 T3#32 1959 2006 48 1 0 .380 .92 1.55 .285 .206 .321 2.47 .429 -.012 1 33 T3#37 1963 2006 44 1 0 .572 1.35 2.39 .414 .405 .234 2.73 .554 .026 1 34 T3#54 1963 2006 44 1 0 .485 1.17 2.63 .608 .759 .279 2.66 .486 .043 1 35 T3#99 1940 2006 67 3 0 .458 .32 1.62 .358 .883 .339 2.68 .480 -.120 2 36 T3#100 1941 2006 66 3 0 .414 .35 .99 .216 .785 .317 2.63 .480 .004 1 37 T3#101 1904 2006 103 4 0 .636 .50 .99 .168 .659 .202 2.58 .477 -.053 1 38 T3#101S 1899 2006 108 5 0 .739 1.32 2.49 .464 .783 .195 2.42 .349 .002 1 39 T3#102 1860 2006 147 6 0 .495 .85 3.73 .627 .735 .334 2.58 .351 -.072 1 40 T3#103S 1870 2006 137 6 0 .509 .49 1.71 .333 .807 .301 2.48 .337 -.070 1 41 T4#1 1775 2006 232 9 0 .579 .80 2.09 .319 .795 .213 2.73 .474 .006 1 42 T4#5 1795 2006 212 9 0 .693 .64 1.84 .251 .739 .220 2.65 .396 -.039 1 43 T4#8 1904 2006 103 4 0 .530 1.06 2.56 .484 .601 .341 2.79 .591 .006 2 44 T4#16 1928 2006 79 3 0 .383 .53 2.74 .418 .884 .271 2.72 .523 .004 1 45 T4#21 1960 2006 47 1 0 .536 .49 1.51 .318 .735 .352 2.51 .497 -.131 1 46 T4#42 1946 2006 61 3 0 .409 .53 .92 .165 .386 .279 2.64 .513 .042 1 47 T4#46 1948 2006 59 3 0 .554 .50 1.04 .211 .718 .251 2.50 .460 .029 1 48 T4#50 1965 2006 42 1 0 .571 1.08 2.29 .414 .553 .283 2.76 .515 -.017 1 PART 7: DESCRIPTIVE STATISTICS: Preston Park 17:09 Tue 08 Jan 2008 Page 10 ----------------------------------------------------------------------------------------------------------------------------------- Corr //-------- Unfiltered --------\\ //---- Filtered -----\\ No. No. No. with Mean Max Std Auto Mean Max Std Auto AR Seq Series Interval Years Segmt Flags Master msmt msmt dev corr sens value dev corr () --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- 49 T4#67 1956 2006 51 2 0 .402 .60 2.27 .409 .748 .326 2.73 .528 -.048 1 50 T4#79 1950 2006 57 2 0 .406 .73 2.11 .381 .795 .235 2.76 .560 -.057 1 51 T4#136 1921 2006 86 4 0 .430 .23 .88 .156 .730 .297 3.04 .638 -.029 1 52 T4#138 1966 2006 41 1 0 .591 .44 1.41 .282 .806 .314 2.66 .632 -.016 2 53 T4#141 1920 2006 87 4 0 .551 2.17 3.76 .810 .630 .251 2.72 .577 .060 2 54 T5#1 1920 2006 87 4 0 .531 1.01 2.73 .568 .738 .269 2.73 .480 -.094 1 55 T5#2 1923 2006 84 4 0 .656 1.59 3.28 .573 .669 .232 2.76 .540 -.113 1 56 T5#4 1927 2006 80 3 0 .483 .64 1.41 .330 .593 .325 2.72 .490 .000 1 57 T5#8 1966 2006 41 1 0 .573 .63 1.28 .242 .465 .323 2.66 .588 .007 1 58 T5#41 1943 2006 64 3 1 .422 .69 2.02 .362 .718 .259 2.72 .577 -.040 2 59 T5#46 1900 2006 107 4 0 .595 1.04 2.99 .554 .813 .268 2.71 .451 -.018 1 60 T5#47B 1796 2006 211 9 0 .584 .60 2.60 .382 .794 .280 2.79 .464 -.049 1 61 T6#1A 1889 2006 118 5 0 .655 1.38 2.97 .723 .842 .257 2.67 .364 -.005 1 62 T6#4 1882 2006 125 5 0 .635 .40 .96 .217 .742 .290 2.77 .512 -.008 1 63 T6#5 1920 2006 87 4 0 .589 1.22 2.40 .510 .654 .282 2.74 .509 .065 1 64 T6#7 1930 2006 77 3 0 .654 .78 1.72 .312 .571 .313 2.62 .501 .007 2 65 T6#8 1913 2006 94 4 0 .621 .71 1.52 .265 .500 .277 2.82 .473 -.016 1 66 T6#34 1930 2006 77 3 0 .522 .85 1.97 .319 .591 .256 2.81 .539 -.014 1 67 T6#35B 1879 2006 128 5 0 .681 .53 1.07 .159 .585 .212 2.76 .494 -.011 1 68 T6#38B 1886 2006 121 5 0 .577 .53 1.16 .264 .802 .230 2.82 .538 .005 1 69 T6#39 1880 2006 127 5 0 .644 .64 1.58 .341 .840 .247 2.84 .447 -.036 1 70 T6#40 1879 2006 128 5 1 .401 .53 1.30 .294 .803 .261 2.38 .264 -.059 1 71 T6#43 1950 2006 57 2 0 .552 .50 1.30 .299 .723 .334 2.84 .606 -.059 1 72 T6#53A 1855 2006 152 6 0 .627 1.13 2.56 .562 .802 .220 2.92 .528 .010 1 73 T7#4 1857 2006 150 6 0 .651 .67 1.50 .313 .829 .231 2.56 .405 -.010 1 74 T7#5 1930 2006 77 3 0 .554 .37 .79 .171 .797 .211 2.61 .507 -.015 1 75 T7#7 1890 2006 117 5 0 .479 .50 1.33 .207 .643 .263 2.66 .339 -.042 1 76 T7#10 1871 2006 136 6 1 .535 .77 2.93 .519 .869 .242 3.05 .561 -.048 2 77 T7#12 1880 2006 127 5 0 .463 .58 1.33 .240 .595 .326 2.64 .510 .031 1 78 T7#13 1931 2006 76 3 0 .611 .81 1.96 .360 .669 .289 2.73 .559 .040 1 79 T7#55A 1840 2006 167 7 0 .479 .46 1.31 .263 .777 .273 2.63 .395 -.039 1 80 T7#56B 1815 2006 192 8 0 .553 .65 1.94 .456 .902 .214 2.69 .411 -.049 1 --- -------- --------- ----- ----- ----- ------ ----- ----- ----- ----- ----- ----- ----- ----- -- Total or mean: 8100 324 5 .556 .70 3.76 .317 .713 .259 3.11 .457 -.018